Sue, sorry I can't help you here. So far I have not been able to trace my Creer line any further back than John Creer married to Sarah Taggart on 13th Sept 1813 in Malew - and I have no more details of these two, other than their marriage data and details of their children from the IGI.
I will certainly look out for your Ellinor Creer as and when I manage to trace any further back in time.
thanks
John